David Zabriskie

David Zabriskie is a retired professional road bicycle racer from the United States, who competed as a professional between 1999 and 2013. His main strength is individual time trials and his career highlights include stage wins in all three Grand Tour stage races and winning the US National Time Trial Championship seven times. Zabriskie is known for his quirky nature, including singing before stages and the interviews he does with fellow riders in the professional peloton which are posted on his web site.

Zabriskie was born in Salt Lake City, Utah, and graduated from Olympus High School in 1997, and made his professional debut with the Colorado Cyclist team in 1999. After displaying his talent for time trials by winning the US National Time Trial Championships and the Grand Prix des Nations , Zabriskie moved on to the U.S. Postal Service team in 2001.

Source: Wikipedia